Question: What was the epidemic in Sierra Leone that had the least number of cases?
Paraphrase: What epidemic had the least number of cases in Sierra Leone?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q44512 . ?ent wdt:P1603 ?obj . ?ent wdt:P17 wd:Q1044. } ORDER BY ASC(?obj)LIMIT 5 
Answer: 2014 Ebola virus epidemic in Sierra Leone, Western African Ebola virus epidemic